Wrapping mechanism for pasteboard boxes



July 31, 1923.

G. J. THUST wRAPPIm MECHANISM FOR PASTEBOARD BOXES Filed Aug. '7

1922 3 Sheets-Sheet 1 A TTORNEY.

July 31; 1923. v 1,463.639.

G. J. THUST I WRAPPING MECHANISM FOR PASTEBOARD BOXES Filed Aug '7, 1922 '3 Sheets-Sheet 2 ATTORNEY.

July 31, 1923.

6. J. THUST WRAPPING MECHANISM FOR PASTEBOARD BOXES Filed Aug. 7, 1922 :s Sheefs-Sheeia 5 A TTORNEY.

45 --port maybe mounted by any suitable-means details of construction which are embodied To all whom it may concern Patented July 31, 1923.

I T ED 1,463,639 PATENT OFFICE;

.enonen J. THUST, or MILWAUKEE, WISCONSIN;

wnnrrine MECHANISM non PASTEBOARD BOX S.

Application filed August z ieez. Serial n. 580,217.

kind whichis used in applying the wrappers t paste-board boxes. 7

Machineswhich have hitherto been con ,structed for this purpose ar very exp n ive and since theyqui'ck'ly wear out the enormous expense required'to maintain a factory adds materially. to the overhead expenses in manufacturing boxes of this "kind.

The general object of my invention is to provide amachine for doing'this work which will be of comparatively simple construction. and inexpensive and at the same timeone which will operate eflic-iently.

lVly invention further resides in certain in the machine illustrated in the accompanying drawing, in which 1 Fi 1 i nf vertical transverse sec -1. w

' 1 'sitions'hown in Figure .4 the rollers l2 which of the machine.

Figure 2 is a'vertical longitudinal section thereof.

Figure 3 is a sectional plan View. 7

Figures 4, 5, and 6, are sectional detail views showing the successive stages in the wrapping process, and I Figure 7 r is a perspective view showing vanother detail of the wrapping operation.

Referring specifically t the drawings, the. numeral 1 indicates the frame work on which is mounteda table 2 provided with the channelways 3 which intersect at right angles in the-center of the table: A sup-,

porting block at is mounted at the intersectionof the ch-annelways. Along this sup any one of a- {number of wor k supporting members 5. These work supporting memhers are made in different sizes to be used for working on-difierent. sized boxes. The {portion ,of the paste-board boxidto which the wrapper is 515D be applied is' placed on.

' the; support 5 together with the wrapper 7' which has been previously. coated with glue. The presser-foot 8 is then lowered by means hereinafter described t eng ge. the box and...

' hold it firmly in position while thewrapper is being applied thereto. Thesupporting member 5 is provided at its sides and ends with side pieces or plates 9 which are hinged so as to be moved upwardly against thes'ides of the box, the shoulders 10 being provided,

to stop this movement when the side pieces reach a perpendicular position. The side pieoesfi) are provided withjclips ll atthe ends w ch are pr i d f r the P p s o f lding the edges over the ends of the boxes as,

shown Figure 7. The side plates 9 are n lf e'r' 'cle c f b d, re hinge t t e plate d ese m rs ogeth r qn t tnte' i ge t th suppor 5 a d s r p h gleunit, These units are made in varions.

es t a co m d ifier ht s z ox and are adapted to beinterchanged." 'The rollers 12, it will be noted, have neither dire t n'o p manent qnn a i n With. eith upon continued-motion, operate thestrips .14. y, heref re, the .r sl2, throug t r p a g and s pperting mea her f' t r b d, m y dj s e to a commodate units f difierent sizes,

Starting withlthe box and wrapper in pothe plates 9 or the strips "14;, but are adaptedt; t o er t th m ns qi i nc'ey ha is, t r er en a e he pla e 9 fi tiand t er afte Figure 7, The hinged portion 9 also carries a hinged strip 14 which'is provided with 1a rearwardly extending spring-finger 15.

Upon further movement. of. the roller, 12

this strip 14L "is turned over into the position shown in Figure 6. At this point the spring-finger, 15 is under. considerable tension and. the wrapper.- is firmly pressed against the sides of the box: f e

For the purpose of moving the rollers up wardly the arms 13 which carry the rollers] aresecured to a verticalrack- 1 6. which is mounted in a vertical guidewayicarried by an adjustable plate 1?. which is inounted in i one of the channelways3 and secured for adjustrnent' by any suitable. means. for adj 11st ing itto ldi i ferent sized boxes; The rack 16 is raised by means of ja segment 18 connected therewith, said segment being keyed to the shaft 19 which maybe operated by the handeranl: -Ihe.r i 117 ..s;.P ovided1 th a ion downwardly extended bearing21 provided with a yoke 22 which holds the segment and rack operatively connected in all positions of adjustment. I s I V t After the rollers have been raised to apply the wrapper to the sidesof the box the op-' positely disposed rollers are raised to apply the end portions of the wrapper. This lat- .ter operation is accomplished byrtheside pieces 9 and strips 14* which are similar in all respects to the side pieces 9 and strips 14: except that they have no clip 11 attached thereto. I r

In order to limit the movement of the rollers 12 to the position shown inFigure 6 so that they will not rideoffover the ends of the spring-fingers 15 I have provided each of the rack bars 16with a'stop 23. This stop is adjustably mounted so as to provide for boxesof different height.

In order to provide suitable means for raising and lowering the presser-foot 8 it is V secured'to the lower end of an arm 24 which overthe rock shaft 30.

. 3 mounted on the rock shaft for the purpose 1 is carried by a yoke 25 slidably mounted on the'vertical standard. 26. This yoke is pro vided with a stud 27 which is connected by means of a link 28 to an armf-29 extending A treadle 31 is of rocking the same.

andthe rollers 12 again lowered the operator presses on the treadle 31 to raise the presser-foot. The presser-jfoot is provided with holes which register with the vertical rods 32 secured to --the upper end of'the standard '26. 7 When the presserfoot is raised the rods 32 project downwardly through the holes therein and positively remove the box therefrom, whereupon the box may be dropped into a suitable receptacle and the machine is ready for the next operation. p p

From the above description it will be seen that I have constructed a simple and iii- .expen' sive machine and yet one which may I be operated as rapidly as the much more made therein without spirit of the invention.

expensive machines now in use. I have described in detail one form inwhich my invention may be embodied but it will be understood that'the invention is not limitedto the precise structure herein shown and described but that many modifications may be departing from the 1, A l machine for 'wrapping multis'ided boxesjcomprisingfa support for the wrapper and'the box, a platefor each side of said. 6Q.

box'hinge'd to saids'upport, a strip for each "plate "and hingedl y' "Ijoinecl" thereto, and a .7 single movable; member for each plate and hits corresponding strip adapted'to successively. operate said plateand strip to force the wrapper against the side of the 9% am,

I After the wrapper is secured to the box completely fold the wrapper'over the edge of said box and againstits inner side.

2; In a wrapping mechanism for pasteboard boxes, interchangeable means for operating upon wrappers and boxes of dif ferent' sizes "and holding them inlposition, said meanscomprising a support and plates,

means hinged to said support for folding the wvrapper against theouter side portion of the box, means hinged to said plates for subsequently folding v. the Wrapper against the inside ofthe side portion, means for opera-ting said plates and hinged means, and means for adjusting'said operating means to accommodate different sized boxes. V

3. In a wrapping mechanism for pasteboard boxes, means for supporting the wrapper and box in position to be operated upon, a vertically movable arm having a roller thereon, means located in the path of the roller and operable thereby to fold the wrapper against the outer side portion of the box, and means operable' by further "movement of the roller in the same directionto' fold the wrapper against'the inner side portion of the box. 1

i. In a wrapping'mechanism for pasteboard boxes; of varying sizes, interchangeand wrapper, a presser-foot' for holding the same while being operated upon, side pieces hmged to the supporting means and movable to fold the wrapper against the outer side portion of the box, means for limiting the movement of the side portion toa position at right angles to the supporting means, means hinged to said side piece for subsequently folding the wrapper against the inside of the side portion, means for operating saidhinged portion, and means passing thru said presser' foot for positively re moving the boxffrom the pressersfoot after the wrapping operation is completed.

6. In a wrapping mechanism for pastesame while being operated upon, a vertically movable arm .ateach side of the box and having a roller thereon, aside piecehinged' to the supporting means and'engageable by the roller upon its upward movement to fold it? Wl epP gainst-the ut r ideportion board boxes, means for supporting the box and wrapper, a presser-foot for holding the 1 of the box, a strip hinged to saidside piece and having a spring finger engageable by said arm and roller upon "further upward movement thereof to fold the wrapper against the inside of the side portion, and means for positively removing the box from Presser-foot after the] Wrapping operation is completed. y

7. In a Wrapping mechanism for pasteboard boxes, means for supporting the box and wrapper in position to be operated upon, an arm guided for vertical reciprocatory movement at eachside of the box,.a rackand segment for operating-each arm and operable upon upward movement of said arms to fold the wrapper against the, sides of the box and against the inside faces thereof.

8. In a wrapping mechanism for pasteporting wrappers and boxes of difierent sizes in position tobe operated upon, an arm guided for vertical re'ciprocatory movement 7 at each side of the box, a rack and segment for operating eacharm, means operable upon upward movementv of said arms to fold the wrapper over the sides of the box and against the inside faces thereof, and

' means for adjusting said operating means to I have hereunto set my hand at Milwaukee,

in the county of Milwaukee and State of Wisconsin.

GEORGE J. THUST. 

